Rotary apparatus for the production of diffused electric discharges.



No. 707,797, Patented Aug. 26, I902.

m. OTTO.

ROTARY APPARATUS FOR THE PRODUCTION OF DIEFUSED ELECTRIC DISGHARGES (Applicaticn filed Nov. 12, 1901.

(Ni Model.) 2 Sheets-$heet l.

Fig.1

a n a/ \D a D E L 7 u If I 6 r r I 1 H e l B11 o 'INVENZOH. WITNESSES, Ohw (@227.

t fi; 4

A 7 TOHNE Y8.

No. 707,797. Patented Aug. 26, I902.

M. UTTU.

ROTARY APPARATUS FOR THE PRODUCTION OF DIFFUSED ELECTRIC DISCHARGES.

(Application filed Nov. 12, 1901.)

2 Sheets-Sheet 2..

6N0 Model.)

f/IIIl/I/III/I/I 110m WWI/ml] III fill/J17 A I/VVENTOR.

wmvsssss;

ATTORNEYS.

MARIUS OTTO, or: NEUILLYfFRANoE.

ROTARY APPARATUS FOR THE PRODUCTION OF DIEFUSED ELECTRIC DISCHARGES.

- SPECIFICATION forming part of Letters Patent No. 707,797, dated August 26, 1902.

Application filed November 12, i901- Serial No. 82,030. (No model.)

To all whom it may concern:

Be it known that I, MARIUS OTTO, of No. 18 Avenue de Neuilly, Neuilly, Seine, in the Republic of France, have invented a certain newand useful Improved Rotary Apparatus for the Production of Diifused Electric Discharges; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make anduse the same.

This invention relates to an improved'rotating machine for effecting acontinuous and uniform discharge of electricity across a space through which a quantity of gas may be caused to pass in order that it may be subjected to electrical treatment.

In my previous patents, numbered 599,455

I and 640,694, I'have described an apparatus capable of producing in a continuous manner difiused electric discharges. The principal cheggcteristic of that apparatus consisted in 1 anl iirrangement of the positive and negative electrodes relatively to one another in such a way that the time is too short for the electric current to establish short circuits.

The method which I have indicated for antomatically cutting the arcs which tend to be produced consists in making the electrodes -movable one relatively to the other or in placing between electrodes which are fixed separating-disks which are perforated and movable. In short; the means which I have employed to avoid the formation of conductare metallic surfaces which are provided with.

points or other acute projections.

Although in my chief patent, numbered 599,455, I have pointed out the possibility of employing even and smooth surfaces, it is. still true that surfaces with projections, like those which I have represented in the various sults which are very much better.

-haps be induced teem ploy in preference elecforms of the construction described, give re- In certain particular cases, for economical reasons, in order to'rednce obstruction one may pertrodes withv an even surface-plane, cylindrical, or otherwise shaped-such, for example, as a simple disk. I have observed that (subject of course to the condition that'the principle of relative motion protected'by my which has led me tothe new form of appara-- tus which is the subject of this present application for a patent.

Figures 1 and 2 show arepresentative example of such an apparatus which is specially designed for the formation of ozone. Fig. 1 isavertical section taken through the axis,

' and Fig. 2 represents, on the left-hand half,

a section taken along the plane indicated by AB in Fig. 1, while the right half represents a section taken along the plane indicated by C: D, both being viewed in a direction from right to left.

Through a casing a, of any convenient form, an axle b is passed and is supported on two bearings ad, which are secured to two blocks of insulating materialf g. A pulley e, which is keyed to the axle b, receives a rotary motion, which it transmits to the said axle. Upon the axle is secured a metallic plate h, of which one-half is shown in the right-hand half of Fig. 2. The plate It is perforated by a number of'narrow radial apertures 1 2 3 4 5 &c.-, evenly separated. These apertures are provided with insulating membranes 7.2, preferably of ebonite. The disk h, which forms one of the electrodes of the apparatus, revolves between two fixed disks or plates 2', of which one is seen in half-elevation on the left-hand half of Fig. '2. The disks '11 are on the side toward the revolving plate 72) covered by an insulated film or by a lining of appropriate dielectric material I, such as ebonite. These disks are hollow and are thus able to receive a current of cold air or "loo refrigerated wateiywhich circulates in the di- T rections of the'arrows, entering through the tubes m m and going out through the other tubes These tubes enter the apparatus;

through the casing a and .form supports for the disks 2' '12, which are open at their centers for the passage eras axle h, In the interior of the diskan annularpartitidno separates the space for the circulation "of thewaterfroma ring-passage p, of whici 'the boundary edge at the-central cpening is pierced with orifices. These orifices provide a passage into the interior of the apparatus fo'rfthe air which is supplied 'iZD-Qflch cit-the rings by one ofi the branches of the pipe 3. The axle is insulated from the casing'andfplate'a, which incloses the apparatus, byfnea'ns of two disks 6 t, of insulating material, and'riiuid tightness is pro-.

aided by two stuflingboxes nu. The electric current is led to the apparatus by a ccn doctor w connected to one ofthe poles of a iiigbtensicn transformer, the otherpole of which is connected to earth.f.- A second confree to turn on a horizontal axis andsnsnended in front of a conical mouthpiece, the air fiowsby the tube around the branches it into the ring-chamber p, from which it escapes by the orifices; q and spreads itself, as indicated; by the arrows. The axle being set in motion, theair receives the diffused discharges which shoot across the space between the moving metallic plate h and the two fixed conducting-disks 2 which are covered with a lining or coat of dielectric material .Z. The

oxygen of the air is partially transformed into-ozone, and the outflow'of the ozone takes plscethrough the tube c, .Fig. 2. The dielectricwhich covers the dish i should be iiividcd into parts, as is indicated in Fig. 2. In

such'a case the parts of the disk not covered acme;

should be hollowed to prevent sparks shooting directly between the electrode which is in motion and that which is fixed.

It will be obvious that the sameapparatus maybe made to contain many elements similar to those which have been represented-- that is to say, many moving disks each placed, respectively, between two fixed disks. The disks or plates may be arranged vertically upon a horizontal axle or horizontally upon a vertical axle. Lastly, the electrodes with even surfaces instead of being planes may be cylindrical surfaces surrounding one another,

or any other form may be given to them consistent with small resistance and cost of. constrnction.

1. In an apparatus for producing distributed electric discharges, the combination with electrodes moving relatively to each other, or

dielectric material interposed between said electrodes, substantially as described.

2.' In ran-apparatus for producing distributed electrical discharges, a pair of stationary conducting-disks having each a covering or facing of dielectric material, and a conducting-disk movably mounted between the dielectric-covered faces of the stationary conducting-disks, substantially as described.

3. In an apparatus for producing distributed electrical discharges, a. pair of hollow stationary conducting-disks arranged parallel to each other, means for supplying a coolingmedium thereto, a covering 01' facing of dielectric material on the opposing faces 0t saiddisks, and a disk of conducting material rotatably mounted between said dielectriccovered faces, substantially as described.

In testimony whereof I have hereunto set my hand in thepresence of two witnesses.

MARIUS OTTO.

VYitnesses:

Louis GARDET, EDWARD P. MACLEAN. 

